Four seat heights: 12" 14" 16" and 18". Ergonomically contoured seat and back of durable ABS plastic 15-gauge strong steel frame Anti-tip wall-saver glides, Black with Grey bottom Stack 6 high 15 year manufacturers warranty Made in the USA GreenGuard Certified Sold in carton quantities only (2 per carton) Available in 11 plastic seat and back color and 16 frame finishes. Chrome and Metallic frames available for an up-charge. Call our School Furniture Xperts toll free at 1-877-825-7803 if you do not see the color you want.